CVE-2026-50406 - Vulnerability Details - OpenCVE

Use after free in Windows Backup Engine allows an authorized attacker to elevate privileges locally.

No CVSS v4.0

Attack Vector Local

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00252.

Exploitation none

Automatable no

Technical Impact total

Vendors	Products
Microsoft	Windows 10 21h2 Windows 10 22h2 Windows 11 24h2 Windows 11 25h2 Windows 11 26h1

No data.

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

Vendors	Products

References

Link	Providers
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50406

History

Wed, 15 Jul 2026 15:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Tue, 14 Jul 2026 17:45:00 +0000

Type	Values Removed	Values Added
Description		Use after free in Windows Backup Engine allows an authorized attacker to elevate privileges locally.
Title		Windows Backup Engine Elevation of Privilege Vulnerability
First Time appeared		Microsoft Microsoft windows 10 21h2 Microsoft windows 10 22h2 Microsoft windows 11 24h2 Microsoft windows 11 25h2 Microsoft windows 11 26h1
Weaknesses		CWE-416
CPEs		cpe:2.3:o:microsoft:windows_10_21H2:::::::x86:* cpe:2.3:o:microsoft:windows_10_22H2:::::::x64:* cpe:2.3:o:microsoft:windows_11_24H2:::::::arm64:* cpe:2.3:o:microsoft:windows_11_25H2:::::::arm64:* cpe:2.3:o:microsoft:windows_11_26H1:::::::x64:*
Vendors & Products		Microsoft Microsoft windows 10 21h2 Microsoft windows 10 22h2 Microsoft windows 11 24h2 Microsoft windows 11 25h2 Microsoft windows 11 26h1
References		https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50406
Metrics		cvssV3_1 `{'score': 7, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C'}`

MITRE

Status: PUBLISHED

Assigner: microsoft

Published: 2026-07-14T17:07:43.551Z

Updated: 2026-07-16T22:00:02.572Z

Reserved: 2026-06-04T18:56:53.259Z

Link: CVE-2026-50406

Vulnrichment

Updated: 2026-07-15T13:29:34.907Z

NVD

No data.

Redhat

No data.

OpenCVE Enrichment

Updated: 2026-07-16T14:15:04Z

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